1,872 Works

MODFLOW-2000 and MODPATH4 used to simulate groundwater flow and contaminant transport in the Pohatcong Valley, Warren County, New Jersey

Glen B Carleton
The U. S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, developed a numerical groundwater flow model, using MODFLOW2000, to simulate groundwater flow in the Pohatcong Valley including the area within the Pohatcong Valley Ground Water Contamination Site. In 1978, the chlorinated solvents trichloroethene (TCE) and tetrachloroethene (PCE) were detected in the Pohatcong Valley in production wells in Washington Borough and Washington Township, Warren County, New Jersey. Subsequent investigation revealed that many domestic...

Virginia Northern Flying Squirrel (Glaucomys sabrinus fuscus) mNFSQf_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Virginia Northern Flying Squirrel. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

American White Pelican (Pelecanus erythrorhynchos) bAWPEx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for American White Pelican. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

MODFLOW 6 and MODPATH 7 model data sets used to evaluate groundwater flow in the vicinity of Horsham and Warminster, Bucks and Montgomery Counties, Pennsylvania-Preliminary simulations for conditions in 1999, 2010, 2013, 2016, and 2017

Daniel J Goode & Lisa A Senior
In cooperation with the U.S. Navy, USGS developed and calibrated a numerical MODFLOW 6 model to simulate regional groundwater flow under selected conditions during 1999-2017 at and near the former Willow Grove Naval Air Station Joint Reserve Base in Horsham, Montgomery County and the former Naval Air Warfare Center Warminster in Bucks County, Pennsylvania. The model simulations provide information on regional groundwater-flow paths and groundwater/surface-water exchanges, in relation to changes in water supply pumping and...

R Code to analyze data from sediment incubation experiments (Fox and Duck Rivermouths; 2016)

James H Larson

MODFLOW-2000 and MODPATH used to evaluate groundwater-management scenarios in the Brunswick area, Georgia, 2004-2015

Gregory S. Cherry
A previously published groundwater flow model (https://pubs.usgs.gov/sir/2005/5089/) was revised with refined grid spacing and updated hydrogeolgic framework and hydrologic properties (http://dx.doi.org/10.3133/sir20155061) and used in this study to predict the effects of Upper Floridan aquifer (UFA) groundwater pumpage on horizontal hydraulic-head gradients in the upper-water-bearing zone of the UFA in the downtown Brunswick area, Glynn County, Georgia. The model used MOFLOW-2000 and was calibrated using groundwater-use information for October 2015, which was the basis for the...

Eastern Bluebird (Sialia sialis) bEABLx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Eastern Bluebird. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Bufflehead (Bucephala albeola) bBUFFx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Bufflehead. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

MODFLOW-NWT groundwater flow model used to evaluate groundwater availability with five forecast scenarios in the Northern High Plains Aquifer in Colorado, Kansas, Nebraska, South Dakota, and Wyoming

Steven M Peterson, Jonathan P Traylor & Moussa Guira
This groundwater flow model used a previously developed three-dimensional groundwater flow model (https://doi.org/10.3133/sir20165153) was used to assess future groundwater availability in the Northern High Plains aquifer in Colorado, Kansas, Nebraska, South Dakota, and Wyoming. In this groundwater flow model, a modified version of a previously published soil-water-balance (SWB) model (https://doi.org/10.3133/sir20165153) estimates recharge and groundwater withdrawals for irrigation using climatic, soils, land-cover data. For this groundwater flow model, the SWB output was adjusted in areas where...

MODFLOW-2005 model used to evaluate water-management scenarios for the Mississippi Delta

Connor J Haugh, Courtney D Killian & Jeannie R Barlow
A three-dimensional groundwater flow model (MODFLOW-2005) of the Mississippi embayment, South-Central United States, was developed as part of a national project initiated by the U.S. Geological Survey Groundwater Resources Program to provide updated assessments of groundwater availability in important principal aquifers across the United States. The goals of the national assessment are to document effects of human activities on water levels and groundwater storage, explore climate variability effects on the regional water budget, and evaluate...

Cooper's Hawk (Accipiter cooperii) bCOHAx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Cooper's Hawk. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Northern Short-tailed Shrew (Blarina brevicauda) mNOSSx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Northern Short-tailed Shrew. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

MODFLOW2005 model used to simulate the effects of groundwater withdrawals from aquifers in Ocean County and vicinity, New Jersey

Stephen J Cauller, Lois M Voronin & Mary M Chepiga
A three-dimensional groundwater flow model was developed to simulate the effects of withdrawals on the groundwater-flow systems of five aquifers in and around Ocean County, New Jersey-the unconfined Kirkwood-Cohansey aquifer system and Vincentown aquifer, and three confined aquifers--the Rio Grande water-bearing zone, the Atlantic City 800-foot sand, and the Piney Point aquifer. A transient model was used to simulate conditions that represent no groundwater withdrawals, 2000-2003 groundwater withdrawals, and maximum-allocation groundwater withdrawals. Particle-tracking analysis, using...

Desert Grassland Whiptail (Aspidoscelis uniparens) rDGWHx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Desert Grassland Whiptail. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

MODFLOW model used to simulate multiple-well aquifer tests and characterize hydraulic properties of volcanic rocks in Pahute Mesa

C. Amanda Garcia, Tracie R Jackson & Keith J Halford
An improved understanding of groundwater flow and radionuclide migration downgradient from underground nuclear-testing areas at Pahute Mesa, Nevada National Security Site, requires accurate subsurface hydraulic characterization. To improve conceptual models of flow and transport in the complex hydrogeologic system beneath Pahute Mesa, the U.S. Geological Survey characterized bulk hydraulic properties of volcanic rocks using an integrated analysis of 16 multiple-well aquifer tests. Single-well aquifer-test analyses provided transmissivity estimates at pumped wells. Transmissivity estimates ranged from...

MODFLOW 2000 and MT3DMS models of potentiometric head and trichloroethene concentration at the Naval Industrial Reserve Ordnance Plant, Fridley, Minnesota

J Hal Davis & Jeffrey N King
This model is a preliminary characterization of trichloroethene transport in the surficial and Cambrian-Ordovician aquifer systems at the Naval Industrial Reserve Ordnance Plant in Fridley, Minnesota. The characterization first considered 2001 conditions using a MODFLOW and MT3DMS, followed by an application of this 2001 model to 2011 conditions. The U.S. Geological Survey (USGS), in cooperation with the U.S. Department of the Navy, used the steady-state, uniform-density groundwater flow model MODFLOW to calculate potentiometric heads in...

Northern Flying Squirrel (Glaucomys sabrinus) mNFSQx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Northern Flying Squirrel. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Colorado River Cotton Rat (Sigmodon arizonae plenus) mACRAp_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Arizona Cotton Rat (S. a. plenus). These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Blue-throated Hummingbird (Lampornis clemenciae) bBTHHx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Blue-throated Hummingbird. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Tabular Input/Output Data and Model Files for 19 Two-Dimensional Hydraulic Models for Streambed Scour Evaluations at Selected Bridge Sites in Alaska, 2016-2017

Robin A Beebee, Schyler J Knopp, Karenth Dworsky & Paul V Schauer
This data release includes tabular surveyed and interpolated elevation data, the processed computational mesh, and model output data used in scour evaluations. The methods of deriving these datasets and using them to calculate scour are described in the associated Scientific Investigations Report "Scour evaluations and conditions at selected bridge sites in Alaska, 2016-2017". This is a cooperative project with Alaska Department of Transportation and Public Facilities.

Physics-based numerical circulation model outputs of ocean surface circulation during the 2010-2013 summer coral-spawning seasons in Maui Nui, Hawaii, USA

Curt Storlazzi, Maarten Van Ormondt, Yi-Leng Chen & Edwin P.L. Elias
Here we present surface current results from a physics-based, 3-dimensional coupled ocean-atmosphere numerical model that was generated to understand coral larval dispersal patterns in Maui Nui, Hawaii, USA. The model was used to simulate coral larval dispersal patterns from a number of existing State-managed reefs and large tracks of reefs with high coral coverage that might be good candidates for marine-protected areas (MPAs) during 8 spawning events during 2010-2013. The goal of this effort is...

Orchard Oriole (Icterus spurius) bORORx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Orchard Oriole. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Bridled Titmouse (Baeolophus wollweberi) bBRTIx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Bridled Titmouse. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

SUTRA model used to evaluate the role of uplift and erosion in the persistence of saline groundwater in the shallow subsurface

Richard M. Yager, Clifford I Voss & Ward E. Sandford
A modified version of the three-dimensional, variable-density solute-transport model (SUTRA) was developed to simulate the effects of erosion and uplift on the flushing of brine with meteoric water in Permian through Mississippian rocks of the Appalachian Plateaus. The model was run in 10-Ma transient simulations for a range of values of permeability and anisotropy. Model results indicate that the depth of shallow Paleozoic brine in the Appalachian Plateaus is controlled by the flushing rate of...

Registration Year

  • 2014
    3
  • 2015
    4
  • 2016
    17
  • 2017
    33
  • 2018
    1,766
  • 2019
    44
  • 2020
    5

Resource Types

  • Model
    1,872